US9943977B2 - Tensioning device for rotary cutting apparatus - Google Patents

Tensioning device for rotary cutting apparatus Download PDF

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Publication number
US9943977B2
US9943977B2 US14/776,474 US201314776474A US9943977B2 US 9943977 B2 US9943977 B2 US 9943977B2 US 201314776474 A US201314776474 A US 201314776474A US 9943977 B2 US9943977 B2 US 9943977B2
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Prior art keywords
tensioning device
die roll
tip portion
cutting
frame
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US14/776,474
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US20160023367A1 (en
Inventor
Jacques Joseph Philippe SECONDI
Pierre-Luc Paul Andre DIJON
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Hyperion Materials and Technologies Sweden AB
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Sandvik Intellectual Property AB
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Assigned to SANDVIK INTELLECTUAL PROPERTY AB reassignment SANDVIK INTELLECTUAL PROPERTY AB ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DIJON, PIERRE-LUC PAUL ANDRE, SECONDI, Jacques Joseph Philippe
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Assigned to Sandvik Hyperion AB reassignment Sandvik Hyperion AB ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SANDVIK INTELLECTUAL PROPERTY AKTIEBOLAG
Assigned to HYPERION MATERIALS & TECHNOLOGIES (SWEDEN) AB reassignment HYPERION MATERIALS & TECHNOLOGIES (SWEDEN) AB CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: Sandvik Hyperion AB
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/14—Means for treating work or cutting member to facilitate cutting by tensioning the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/40—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member
    • B26D1/405—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/384—Cutting-out; Stamping-out using rotating drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/40—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member

Definitions

  • the present disclosure relates to a tensioning device for creating tension on a material during the cutting of a material by a rotary cutting apparatus including a die roll.
  • the tensioning device may be affixed to a die roll or affixed to an insert on the die roll.
  • non-woven materials have become more advanced. It is quite common to have different types materials such as films and fibers that are bound together either by co-laminating, gluing and welding and bonding. The intent is to integrate more functionalities into these materials. For example, two materials are bonded together and one of the materials is soft to the touch on one side and while the other material is robust and acts as a support for the soft material. The materials may exhibit different characteristics depending on the orientation of the materials, for instance they can deform in one preferred direction.
  • web spreaders may be used. They are placed before the material is cut but are not effective enough during the cut due to the properties of the advanced materials.
  • Embodiments presented herein have many advantages and solve the problems of cutting the aforementioned advanced materials. For example, tensioning can be created in a cross direction during the cut, while prior systems are active only before cutting or after cutting. Embodiments presented herein avoid creating wrinkles in the material. Embodiments presented herein can be adjusted by varying the geometry of the tensioning device. Embodiments presented herein require no adjustment of the rotary cutting device, which makes the system easy to use. Embodiments presented herein may be combined with vacuum in order to permit transfer of trim or product away from the rotary cutting apparatus.
  • a tensioning device for a rotary cutting apparatus includes a body, a tip portion adjacent to the body and a base supporting the body, wherein the tensioning device has an unsymmetrical profile.
  • a tensioning device for a rotary cutting apparatus includes a body and a tip portion having an unsymmetrical profile.
  • a rotary cutting apparatus in yet another embodiment, includes a frame and a die roll rotatably attached to the frame including a cutting member, wherein the die roll includes at least one tensioning device having an unsymmetrical profile further including a body and a tip portion adjacent to the body.
  • the tensioning device may be affixed to the die roll or affixed to an insert on the die roll.
  • a method for cutting a material includes providing a rotary cutting apparatus having a frame and a die roll rotatably attached to the frame; the die roll includes a cutting member and at least one tensioning device.
  • the tensioning device may be affixed to the die roll or affixed to an insert on the die roll.
  • the tensioning device has a body and a tip portion adjacent to the body wherein the profile of the tensioning device is unsymmetrical.
  • An anvil roll is provided adjacent the cutting member. Material is provided between the die roll and the anvil roll and the material is advanced in the machine direction. The material is pinched between the cutting member, the tensioning device and the anvil roll and, simultaneously, the material is cut.
  • FIG. 1 a is a perspective view of a rotary cutting apparatus according to one non-limiting embodiment.
  • FIG. 1 depicts side views of embodiments of a tensioning device according to three non-limiting embodiments.
  • FIG. 2 depicts side, cut-away views of embodiments of a tensioning device according to three non-limiting embodiments.
  • FIG. 3 is a perspective view of one embodiment of a tensioning device according to one non-limiting embodiment.
  • FIG. 4 is a side view of one embodiment of a tensioning device according to one non-limiting embodiment.
  • FIG. 5 is a side view of one embodiment of a tensioning device according to one non-limiting embodiment.
  • FIG. 6 is a perspective view of one embodiment of a tensioning device and an insert
  • a rotary cutting apparatus may comprise a frame, a die roll assembly rotatably attached to the frame, and an anvil roll assembly rotatably attached to the frame.
  • the die roll assembly may comprise a die roll and the anvil roll assembly may comprise an anvil roll.
  • the die roll assembly may also comprise at least one cutting member configured to be forced against the anvil roll, as the anvil roll rotates relative to the die roll, to cut a material being fed through the nip of the die roll and the anvil roll.
  • a rotary cutting apparatus 10 may comprise a frame 12 comprising a top plate 14 , a bottom plate 16 , a first side plate 18 , and/or a second side plate 20 , for example.
  • the first side plate 18 and the second side plate 20 may be connected to the top plate 14 and the bottom plate 16 through any methods known in the art, such as bolting, screwing, and/or welding, for example.
  • the bottom plate 16 of the frame 12 may be mounted to a surface or a rigid member to maintain the frame 12 of the rotary cutting apparatus 10 in a fixed position for operation.
  • the mounting of the frame 12 may be accomplished through any methods known in the art, such as bolting, screwing, and/or welding, for example.
  • the longitudinal axis L 1 of the die roll 28 may be parallel to, or substantially parallel to, the longitudinal axis L 2 of the anvil roll 26 .
  • the anvil roll 26 may be formed from a single rigid piece of material or may be formed with a center portion and a surface material at least partially surrounding the center portion.
  • the anvil roll 26 may comprise tungsten carbide, tool steel, and/or any other suitable materials for forming an anvil roll 26 .
  • the outer radial surface may comprise a material positioned on the anvil roll 26 or integrally formed with the anvil roll 26 , such as tungsten carbide, tool steel, and/or any other suitable material for forming the outer radial surface of the anvil roll 26 .
  • the anvil roll 26 is position next to and along a perpendicular axis with a plurality of wheels 40 , each of said wheels 40 contained at least in part by an individual bracket 41 .
  • the plurality of individual brackets 41 are each mounted onto a portion 42 of a mounting bar 38 , said mounting bar 38 is parallel to and above the a bottom plate 16 .
  • the bottom plate 16 is attached substantially perpendicular to the first side 18 and the second side 20 by at least one mounting bracket 46 .
  • the die roll 28 may be driven by a motor assembly, schematically shown by motor assembly 31 .
  • the motor assembly 31 may comprise a power source and any suitable motor or other device for imparting a rotation upon a shaft 24 .
  • the motor assembly 31 may be configured to be engaged with the shaft 24 of the die roll assembly 28 through any suitable means, such as a drive shaft (not shown).
  • the motor assembly 31 may rotate the outer surface 27 of optional bearer rings 29 , owing to the engagement of the bearer rings 29 with the die roll 28 , at a first speed.
  • each of the bearer rings 29 may be configured to engage the outer radial surface of the anvil roll 26 to drive the anvil roll 26 owing to frictional engagement between the outer surface 27 of the bearer rings 29 and the outer radial surface of the anvil roll 26 .
  • the outer radial surface of the anvil roll 26 can then rotate at a second speed.
  • the speed of the outer surface 27 of the bearer rings 29 may be the same as or substantially the same as the speed of the outer radial surface of the anvil roll 26 .
  • the drive shaft of the motor assembly 31 may be used to drive the anvil roll 26 by conventional methods.
  • die roll 28 may include an insert 61 having at least one tensioning device 35 (see FIG. 6 ) affixed on the insert 61 .
  • the insert 61 may be attached to the die roll 28 by means of screws, glue or other means of attachment.
  • the insert 61 may be constructed of steel, aluminum, metal, ceramics, composites, plastics and other equivalent materials and combinations of the aforementioned materials. As shown in FIG. 6 , insert 61 may contain holes 63 where screws may be inserted to attach the insert 61 to the die roll 28 .
  • the at least one tensioning device 35 may be attached to the die roll without the use of an insert.
  • the at least one tensioning device 35 may be attached to the die roll 28 by means of adhesives, glues, screws or welding. The placement of the at least one tensioning device 35 , or insert including the at least one tensioning device, may be anywhere on the die roll 28 so long as it is between the end of the die roll 28 and the cutting member 30
  • insert 61 there may be more than one insert 61 , including at least one tensioning device 35 , on the die roll 61 .
  • the number of inserts 61 depends on one or more of the following: profile of the cutting member, number of prints per turn of the die roll 28 and/or on the need to vacuum and blow or trim the material.
  • tensioning devices A,B,C for a rotary cutting apparatus include a body 2 , 9 , 15 , a tip portion 1 , 11 , 17 adjacent to the body 2 , 9 , 15 and a base 5 , 7 , 13 supporting the body 2 , 9 , 15 , wherein the tensioning devices A,B,C have unsymmetrical profiles.
  • the geometry of the tensioning device may be altered depending on the desired tension effect when cutting a material. For example, it is possible to increase the height of the tip portion 1 , 11 , 17 and/or the body 2 , 9 , 15 to cause the tensioning device to deform more and create more tension on the material to be cut.
  • the thickness of the tip portion 1 , 11 , 17 may be less than that of the body 3 , 9 , 15 .
  • thickness of the base 7 is greater than that of the body 9 and the tip portion 11 .
  • the thickness of the tip portion 1 , 11 , 17 is about 0.1 cm to about 1.0 cm
  • the thickness of the body 3 , 9 , 15 is from about 0.2 cm to about 2.0 cm
  • thickness of the base 5 , 7 , 13 is from about 0.8 cm to about 3.0 cm.
  • the tensioning device D,E includes at least one vacuum orifice 19 , 71 extending from the tip 75 , 77 through the base 76 , 78 of the tensioning device.
  • the tensioning device F may include at least one vacuum orifice extending from the base 79 through the body of the tensioning device.
  • the vacuum orifice 19 , 71 , 73 reinforces the holding of the material during cutting and complements the tensioning device.
  • the tensioning device 21 is useful during cutting as it decreases the needed cutting force and the vacuum may be used for transferring trim or product from the cutting location to the trim pipe or product conveyor.
  • a tensioning device 23 includes a body 25 and a tip portion 50 .
  • the tensioning device 23 has an unsymmetrical profile.
  • the tensioning device 23 may include at least one vacuum orifice 22 extending from a least part of the tip portion 27 through the body 25 .
  • the tensioning device many include at least one foot 53 extending from the body 25 .
  • an angle, defined between the top surface 59 and the side surface 60 of the tip portion 50 is between about 0 and about 45 degrees.
  • the thickness of the tip portion 50 may be less than that of the body 25 . Further, the thickness of the tip portion 50 is about 0.1 cm to about 1.0 cm and the thickness of the body 25 is from about 0.2 cm to about 2.0 cm.
  • the tensioning device 23 may include at least one vacuum orifice 22 extending from the tip 50 through the base 25 of the device. As shown in FIG. 3 , the tensioning device 23 includes a first foot 51 and a second foot 52 adjacent the first foot 51 . Further, in an embodiment, the vacuum orifice 22 extends through the base 25 and between first foot 51 and second foot 52 .
  • the tensioning device may be directly attached to the die roll 28 or may be attached to an insert 61 that is attached to the die roll 28 as shown in FIGS. 5 and 6 .
  • the insert 61 may extend entirely or partially around the die roll 28 and may be attached to the die roll by means of screws, adhesives, as indicated above.
  • a method for cutting a material includes providing a rotary cutting apparatus 10 including a frame 12 and a die roll 28 rotatably attached to the frame 12 , the die roll 28 including cutting member 30 .
  • the die roll 28 includes at least one tensioning device 35 having a body 25 and a tip portion 50 adjacent to the body 25 .
  • the tensioning device 23 has an unsymmetrical profile. As indicated, the tensioning device may be directly attached to the die roll 28 or may be attached to an insert 61 that is attached to the die roll 28 as shown in FIGS. 5 and 6 . Adjacent the cutting member 30 is anvil roll 26 .
  • Material W is fed, in the machine direction, between the die roll 28 , including cutting member 30 , and the anvil roll 26 .
  • the material is pinched by the tensioning device 23 and held in place momentarily, between the anvil roll 26 and the die roll 28 including the cutting member 30 , by the tensioning device 23 and, simultaneously, the material is cut.
  • the tensioning device deforms laterally about 1 mm, creating a tension in the cross direction D of about 2%.
  • the tensioning device deforms laterally greater than 0 to about 5 mm, creating a tension in the cross direction D from greater than 0 to about 10%
  • the material cut (not shown) by the rotary cutting apparatus 10 may be a web configured for use in fabricating absorbent articles, such as diapers, training diapers, pull-up pants, incontinence briefs, feminine hygiene articles, and undergarments, for example.
  • the material being cut may comprise any material that may be processed by a rotary cutting apparatus, such as corrugated plastic, corrugated fiberboard, card stock, thin metal sheets and/or any other suitable material.
  • the material may have a width up to about 1200 mm. In an embodiment the material may have a width of from about 30 mm to about 1200 mm.
  • deformation of the material is controlled by a parameter such as the geometry of the tip portion, geometry of the body, the angle of the tip portion, length of the tensioning device or hardness of the tensioning device. Combinations of all or at least two of these parameters may be used.
  • the tensioning device can create a tension in cross direction during the cut, while other systems, currently known, are active only before cutting or after cutting.
  • the tensioning device prevents wrinkles in the material due to tension in machine direction. There is no adjustment required which makes the system robust and easy to use.
  • the tensioning device may be combined with vacuum in order to allow proper transfer of trim or product.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
US14/776,474 2013-03-14 2013-03-14 Tensioning device for rotary cutting apparatus Active US9943977B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2013/000942 WO2014140669A1 (en) 2013-03-14 2013-03-14 Tensioning device for rotary cutting apparatus

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US20160023367A1 US20160023367A1 (en) 2016-01-28
US9943977B2 true US9943977B2 (en) 2018-04-17

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US (1) US9943977B2 (ru)
EP (2) EP3498442B1 (ru)
JP (1) JP6119047B2 (ru)
CN (1) CN105102191B (ru)
ES (2) ES2854993T3 (ru)
PL (2) PL3498442T3 (ru)
RU (1) RU2619380C2 (ru)
WO (1) WO2014140669A1 (ru)

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US11618177B1 (en) 2022-04-12 2023-04-04 Bradley W Boesel Orbital knife

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US10166690B2 (en) 2015-03-17 2019-01-01 Illinois Tool Works Inc. Apparatus for producing container carriers
EP3246140B1 (en) * 2016-05-16 2019-06-26 Tetra Laval Holdings & Finance S.A. Cutting unit and method for cutting
CN106426377B (zh) * 2016-09-27 2018-07-03 中山市旭森涂层材料有限公司 一种薄膜切割用刀具辊移动切割装置
CN106393256B (zh) * 2016-09-27 2018-07-13 东莞市华森塑胶五金有限公司 一种薄膜切割用刀具辊调节装置

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